通用乙丙烯橡皮护套 general-purpose ethylene-propylene rubber jacket

通用聚苯乙烯 GPPS ; GPS ; general purpose polystyrene ; GPPS Generral polystyrene

通用级聚苯乙烯 GPPS ; General purpose polystyrene ; General polystyrene ; PS

通用型聚苯乙烯 GPPS general-purpose polystyrene ; general-purpose polystyrene

通用聚苯乙稀 GPPS

通用级聚苯乙稀 GPPS

通用氯化聚乙烯护套 general-purpose chlorinated polyethylene jacket

通用级聚苯乙烯花纹板 General Purpose Polystyrene sheet

通用型聚四氟乙烯树脂 general purpose polytetrafluoroethylene resin

通用聚笨乙烯 GPPS